Control-drag (or type) $f\left(x\right)\=\dots$
Context Panel: Assign Function

Figure 1.1.8(a) shows the oscillatory behavior of $f$. However, because of the multiplicative factor $x$, the oscillations shown in Figure 1.1.7 are encased by between the lines $y\=\pm x$. As $x$ approaches zero, these oscillations are squeezed to zero, and the limit now exists and is, in fact, zero.

Expression palette: Limit template
Context Panel: Evaluate and Display Inline